1 //===---- StmtProfile.cpp - Profile implementation for Stmt ASTs ----------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file implements the Stmt::Profile method, which builds a unique bit
11 // representation that identifies a statement/expression.
12 //
13 //===----------------------------------------------------------------------===//
14 #include "clang/AST/ASTContext.h"
15 #include "clang/AST/DeclCXX.h"
16 #include "clang/AST/DeclObjC.h"
17 #include "clang/AST/DeclTemplate.h"
18 #include "clang/AST/Expr.h"
19 #include "clang/AST/ExprCXX.h"
20 #include "clang/AST/ExprObjC.h"
21 #include "clang/AST/ExprOpenMP.h"
22 #include "clang/AST/StmtVisitor.h"
23 #include "llvm/ADT/FoldingSet.h"
24 using namespace clang;
25 
26 namespace {
27   class StmtProfiler : public ConstStmtVisitor<StmtProfiler> {
28     llvm::FoldingSetNodeID &ID;
29     const ASTContext &Context;
30     bool Canonical;
31 
32   public:
33     StmtProfiler(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
34                  bool Canonical)
35       : ID(ID), Context(Context), Canonical(Canonical) { }
36 
37     void VisitStmt(const Stmt *S);
38 
39 #define STMT(Node, Base) void Visit##Node(const Node *S);
40 #include "clang/AST/StmtNodes.inc"
41 
42     /// \brief Visit a declaration that is referenced within an expression
43     /// or statement.
44     void VisitDecl(const Decl *D);
45 
46     /// \brief Visit a type that is referenced within an expression or
47     /// statement.
48     void VisitType(QualType T);
49 
50     /// \brief Visit a name that occurs within an expression or statement.
51     void VisitName(DeclarationName Name);
52 
53     /// \brief Visit a nested-name-specifier that occurs within an expression
54     /// or statement.
55     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS);
56 
57     /// \brief Visit a template name that occurs within an expression or
58     /// statement.
59     void VisitTemplateName(TemplateName Name);
60 
61     /// \brief Visit template arguments that occur within an expression or
62     /// statement.
63     void VisitTemplateArguments(const TemplateArgumentLoc *Args,
64                                 unsigned NumArgs);
65 
66     /// \brief Visit a single template argument.
67     void VisitTemplateArgument(const TemplateArgument &Arg);
68   };
69 }
70 
71 void StmtProfiler::VisitStmt(const Stmt *S) {
72   ID.AddInteger(S->getStmtClass());
73   for (const Stmt *SubStmt : S->children()) {
74     if (SubStmt)
75       Visit(SubStmt);
76     else
77       ID.AddInteger(0);
78   }
79 }
80 
81 void StmtProfiler::VisitDeclStmt(const DeclStmt *S) {
82   VisitStmt(S);
83   for (const auto *D : S->decls())
84     VisitDecl(D);
85 }
86 
87 void StmtProfiler::VisitNullStmt(const NullStmt *S) {
88   VisitStmt(S);
89 }
90 
91 void StmtProfiler::VisitCompoundStmt(const CompoundStmt *S) {
92   VisitStmt(S);
93 }
94 
95 void StmtProfiler::VisitSwitchCase(const SwitchCase *S) {
96   VisitStmt(S);
97 }
98 
99 void StmtProfiler::VisitCaseStmt(const CaseStmt *S) {
100   VisitStmt(S);
101 }
102 
103 void StmtProfiler::VisitDefaultStmt(const DefaultStmt *S) {
104   VisitStmt(S);
105 }
106 
107 void StmtProfiler::VisitLabelStmt(const LabelStmt *S) {
108   VisitStmt(S);
109   VisitDecl(S->getDecl());
110 }
111 
112 void StmtProfiler::VisitAttributedStmt(const AttributedStmt *S) {
113   VisitStmt(S);
114   // TODO: maybe visit attributes?
115 }
116 
117 void StmtProfiler::VisitIfStmt(const IfStmt *S) {
118   VisitStmt(S);
119   VisitDecl(S->getConditionVariable());
120 }
121 
122 void StmtProfiler::VisitSwitchStmt(const SwitchStmt *S) {
123   VisitStmt(S);
124   VisitDecl(S->getConditionVariable());
125 }
126 
127 void StmtProfiler::VisitWhileStmt(const WhileStmt *S) {
128   VisitStmt(S);
129   VisitDecl(S->getConditionVariable());
130 }
131 
132 void StmtProfiler::VisitDoStmt(const DoStmt *S) {
133   VisitStmt(S);
134 }
135 
136 void StmtProfiler::VisitForStmt(const ForStmt *S) {
137   VisitStmt(S);
138 }
139 
140 void StmtProfiler::VisitGotoStmt(const GotoStmt *S) {
141   VisitStmt(S);
142   VisitDecl(S->getLabel());
143 }
144 
145 void StmtProfiler::VisitIndirectGotoStmt(const IndirectGotoStmt *S) {
146   VisitStmt(S);
147 }
148 
149 void StmtProfiler::VisitContinueStmt(const ContinueStmt *S) {
150   VisitStmt(S);
151 }
152 
153 void StmtProfiler::VisitBreakStmt(const BreakStmt *S) {
154   VisitStmt(S);
155 }
156 
157 void StmtProfiler::VisitReturnStmt(const ReturnStmt *S) {
158   VisitStmt(S);
159 }
160 
161 void StmtProfiler::VisitGCCAsmStmt(const GCCAsmStmt *S) {
162   VisitStmt(S);
163   ID.AddBoolean(S->isVolatile());
164   ID.AddBoolean(S->isSimple());
165   VisitStringLiteral(S->getAsmString());
166   ID.AddInteger(S->getNumOutputs());
167   for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
168     ID.AddString(S->getOutputName(I));
169     VisitStringLiteral(S->getOutputConstraintLiteral(I));
170   }
171   ID.AddInteger(S->getNumInputs());
172   for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
173     ID.AddString(S->getInputName(I));
174     VisitStringLiteral(S->getInputConstraintLiteral(I));
175   }
176   ID.AddInteger(S->getNumClobbers());
177   for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
178     VisitStringLiteral(S->getClobberStringLiteral(I));
179 }
180 
181 void StmtProfiler::VisitMSAsmStmt(const MSAsmStmt *S) {
182   // FIXME: Implement MS style inline asm statement profiler.
183   VisitStmt(S);
184 }
185 
186 void StmtProfiler::VisitCXXCatchStmt(const CXXCatchStmt *S) {
187   VisitStmt(S);
188   VisitType(S->getCaughtType());
189 }
190 
191 void StmtProfiler::VisitCXXTryStmt(const CXXTryStmt *S) {
192   VisitStmt(S);
193 }
194 
195 void StmtProfiler::VisitCXXForRangeStmt(const CXXForRangeStmt *S) {
196   VisitStmt(S);
197 }
198 
199 void StmtProfiler::VisitMSDependentExistsStmt(const MSDependentExistsStmt *S) {
200   VisitStmt(S);
201   ID.AddBoolean(S->isIfExists());
202   VisitNestedNameSpecifier(S->getQualifierLoc().getNestedNameSpecifier());
203   VisitName(S->getNameInfo().getName());
204 }
205 
206 void StmtProfiler::VisitSEHTryStmt(const SEHTryStmt *S) {
207   VisitStmt(S);
208 }
209 
210 void StmtProfiler::VisitSEHFinallyStmt(const SEHFinallyStmt *S) {
211   VisitStmt(S);
212 }
213 
214 void StmtProfiler::VisitSEHExceptStmt(const SEHExceptStmt *S) {
215   VisitStmt(S);
216 }
217 
218 void StmtProfiler::VisitSEHLeaveStmt(const SEHLeaveStmt *S) {
219   VisitStmt(S);
220 }
221 
222 void StmtProfiler::VisitCapturedStmt(const CapturedStmt *S) {
223   VisitStmt(S);
224 }
225 
226 void StmtProfiler::VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {
227   VisitStmt(S);
228 }
229 
230 void StmtProfiler::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *S) {
231   VisitStmt(S);
232   ID.AddBoolean(S->hasEllipsis());
233   if (S->getCatchParamDecl())
234     VisitType(S->getCatchParamDecl()->getType());
235 }
236 
237 void StmtProfiler::VisitObjCAtFinallyStmt(const ObjCAtFinallyStmt *S) {
238   VisitStmt(S);
239 }
240 
241 void StmtProfiler::VisitObjCAtTryStmt(const ObjCAtTryStmt *S) {
242   VisitStmt(S);
243 }
244 
245 void
246 StmtProfiler::VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S) {
247   VisitStmt(S);
248 }
249 
250 void StmtProfiler::VisitObjCAtThrowStmt(const ObjCAtThrowStmt *S) {
251   VisitStmt(S);
252 }
253 
254 void
255 StmtProfiler::VisitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt *S) {
256   VisitStmt(S);
257 }
258 
259 namespace {
260 class OMPClauseProfiler : public ConstOMPClauseVisitor<OMPClauseProfiler> {
261   StmtProfiler *Profiler;
262   /// \brief Process clauses with list of variables.
263   template <typename T>
264   void VisitOMPClauseList(T *Node);
265 
266 public:
267   OMPClauseProfiler(StmtProfiler *P) : Profiler(P) { }
268 #define OPENMP_CLAUSE(Name, Class)                                             \
269   void Visit##Class(const Class *C);
270 #include "clang/Basic/OpenMPKinds.def"
271   void VistOMPClauseWithPreInit(const OMPClauseWithPreInit *C);
272   void VistOMPClauseWithPostUpdate(const OMPClauseWithPostUpdate *C);
273 };
274 
275 void OMPClauseProfiler::VistOMPClauseWithPreInit(
276     const OMPClauseWithPreInit *C) {
277   if (auto *S = C->getPreInitStmt())
278     Profiler->VisitStmt(S);
279 }
280 
281 void OMPClauseProfiler::VistOMPClauseWithPostUpdate(
282     const OMPClauseWithPostUpdate *C) {
283   if (auto *E = C->getPostUpdateExpr())
284     Profiler->VisitStmt(E);
285 }
286 
287 void OMPClauseProfiler::VisitOMPIfClause(const OMPIfClause *C) {
288   if (C->getCondition())
289     Profiler->VisitStmt(C->getCondition());
290 }
291 
292 void OMPClauseProfiler::VisitOMPFinalClause(const OMPFinalClause *C) {
293   if (C->getCondition())
294     Profiler->VisitStmt(C->getCondition());
295 }
296 
297 void OMPClauseProfiler::VisitOMPNumThreadsClause(const OMPNumThreadsClause *C) {
298   if (C->getNumThreads())
299     Profiler->VisitStmt(C->getNumThreads());
300 }
301 
302 void OMPClauseProfiler::VisitOMPSafelenClause(const OMPSafelenClause *C) {
303   if (C->getSafelen())
304     Profiler->VisitStmt(C->getSafelen());
305 }
306 
307 void OMPClauseProfiler::VisitOMPSimdlenClause(const OMPSimdlenClause *C) {
308   if (C->getSimdlen())
309     Profiler->VisitStmt(C->getSimdlen());
310 }
311 
312 void OMPClauseProfiler::VisitOMPCollapseClause(const OMPCollapseClause *C) {
313   if (C->getNumForLoops())
314     Profiler->VisitStmt(C->getNumForLoops());
315 }
316 
317 void OMPClauseProfiler::VisitOMPDefaultClause(const OMPDefaultClause *C) { }
318 
319 void OMPClauseProfiler::VisitOMPProcBindClause(const OMPProcBindClause *C) { }
320 
321 void OMPClauseProfiler::VisitOMPScheduleClause(const OMPScheduleClause *C) {
322   VistOMPClauseWithPreInit(C);
323   if (auto *S = C->getChunkSize())
324     Profiler->VisitStmt(S);
325 }
326 
327 void OMPClauseProfiler::VisitOMPOrderedClause(const OMPOrderedClause *C) {
328   if (auto *Num = C->getNumForLoops())
329     Profiler->VisitStmt(Num);
330 }
331 
332 void OMPClauseProfiler::VisitOMPNowaitClause(const OMPNowaitClause *) {}
333 
334 void OMPClauseProfiler::VisitOMPUntiedClause(const OMPUntiedClause *) {}
335 
336 void OMPClauseProfiler::VisitOMPMergeableClause(const OMPMergeableClause *) {}
337 
338 void OMPClauseProfiler::VisitOMPReadClause(const OMPReadClause *) {}
339 
340 void OMPClauseProfiler::VisitOMPWriteClause(const OMPWriteClause *) {}
341 
342 void OMPClauseProfiler::VisitOMPUpdateClause(const OMPUpdateClause *) {}
343 
344 void OMPClauseProfiler::VisitOMPCaptureClause(const OMPCaptureClause *) {}
345 
346 void OMPClauseProfiler::VisitOMPSeqCstClause(const OMPSeqCstClause *) {}
347 
348 void OMPClauseProfiler::VisitOMPThreadsClause(const OMPThreadsClause *) {}
349 
350 void OMPClauseProfiler::VisitOMPSIMDClause(const OMPSIMDClause *) {}
351 
352 void OMPClauseProfiler::VisitOMPNogroupClause(const OMPNogroupClause *) {}
353 
354 template<typename T>
355 void OMPClauseProfiler::VisitOMPClauseList(T *Node) {
356   for (auto *E : Node->varlists()) {
357     Profiler->VisitStmt(E);
358   }
359 }
360 
361 void OMPClauseProfiler::VisitOMPPrivateClause(const OMPPrivateClause *C) {
362   VisitOMPClauseList(C);
363   for (auto *E : C->private_copies()) {
364     Profiler->VisitStmt(E);
365   }
366 }
367 void
368 OMPClauseProfiler::VisitOMPFirstprivateClause(const OMPFirstprivateClause *C) {
369   VisitOMPClauseList(C);
370   VistOMPClauseWithPreInit(C);
371   for (auto *E : C->private_copies()) {
372     Profiler->VisitStmt(E);
373   }
374   for (auto *E : C->inits()) {
375     Profiler->VisitStmt(E);
376   }
377 }
378 void
379 OMPClauseProfiler::VisitOMPLastprivateClause(const OMPLastprivateClause *C) {
380   VisitOMPClauseList(C);
381   VistOMPClauseWithPreInit(C);
382   VistOMPClauseWithPostUpdate(C);
383   for (auto *E : C->source_exprs()) {
384     Profiler->VisitStmt(E);
385   }
386   for (auto *E : C->destination_exprs()) {
387     Profiler->VisitStmt(E);
388   }
389   for (auto *E : C->assignment_ops()) {
390     Profiler->VisitStmt(E);
391   }
392 }
393 void OMPClauseProfiler::VisitOMPSharedClause(const OMPSharedClause *C) {
394   VisitOMPClauseList(C);
395 }
396 void OMPClauseProfiler::VisitOMPReductionClause(
397                                          const OMPReductionClause *C) {
398   Profiler->VisitNestedNameSpecifier(
399       C->getQualifierLoc().getNestedNameSpecifier());
400   Profiler->VisitName(C->getNameInfo().getName());
401   VisitOMPClauseList(C);
402   for (auto *E : C->privates()) {
403     Profiler->VisitStmt(E);
404   }
405   for (auto *E : C->lhs_exprs()) {
406     Profiler->VisitStmt(E);
407   }
408   for (auto *E : C->rhs_exprs()) {
409     Profiler->VisitStmt(E);
410   }
411   for (auto *E : C->reduction_ops()) {
412     Profiler->VisitStmt(E);
413   }
414 }
415 void OMPClauseProfiler::VisitOMPLinearClause(const OMPLinearClause *C) {
416   VisitOMPClauseList(C);
417   for (auto *E : C->privates()) {
418     Profiler->VisitStmt(E);
419   }
420   for (auto *E : C->inits()) {
421     Profiler->VisitStmt(E);
422   }
423   for (auto *E : C->updates()) {
424     Profiler->VisitStmt(E);
425   }
426   for (auto *E : C->finals()) {
427     Profiler->VisitStmt(E);
428   }
429   Profiler->VisitStmt(C->getStep());
430   Profiler->VisitStmt(C->getCalcStep());
431 }
432 void OMPClauseProfiler::VisitOMPAlignedClause(const OMPAlignedClause *C) {
433   VisitOMPClauseList(C);
434   Profiler->VisitStmt(C->getAlignment());
435 }
436 void OMPClauseProfiler::VisitOMPCopyinClause(const OMPCopyinClause *C) {
437   VisitOMPClauseList(C);
438   for (auto *E : C->source_exprs()) {
439     Profiler->VisitStmt(E);
440   }
441   for (auto *E : C->destination_exprs()) {
442     Profiler->VisitStmt(E);
443   }
444   for (auto *E : C->assignment_ops()) {
445     Profiler->VisitStmt(E);
446   }
447 }
448 void
449 OMPClauseProfiler::VisitOMPCopyprivateClause(const OMPCopyprivateClause *C) {
450   VisitOMPClauseList(C);
451   for (auto *E : C->source_exprs()) {
452     Profiler->VisitStmt(E);
453   }
454   for (auto *E : C->destination_exprs()) {
455     Profiler->VisitStmt(E);
456   }
457   for (auto *E : C->assignment_ops()) {
458     Profiler->VisitStmt(E);
459   }
460 }
461 void OMPClauseProfiler::VisitOMPFlushClause(const OMPFlushClause *C) {
462   VisitOMPClauseList(C);
463 }
464 void OMPClauseProfiler::VisitOMPDependClause(const OMPDependClause *C) {
465   VisitOMPClauseList(C);
466 }
467 void OMPClauseProfiler::VisitOMPDeviceClause(const OMPDeviceClause *C) {
468   Profiler->VisitStmt(C->getDevice());
469 }
470 void OMPClauseProfiler::VisitOMPMapClause(const OMPMapClause *C) {
471   VisitOMPClauseList(C);
472 }
473 void OMPClauseProfiler::VisitOMPNumTeamsClause(const OMPNumTeamsClause *C) {
474   Profiler->VisitStmt(C->getNumTeams());
475 }
476 void OMPClauseProfiler::VisitOMPThreadLimitClause(
477     const OMPThreadLimitClause *C) {
478   Profiler->VisitStmt(C->getThreadLimit());
479 }
480 void OMPClauseProfiler::VisitOMPPriorityClause(const OMPPriorityClause *C) {
481   Profiler->VisitStmt(C->getPriority());
482 }
483 void OMPClauseProfiler::VisitOMPGrainsizeClause(const OMPGrainsizeClause *C) {
484   Profiler->VisitStmt(C->getGrainsize());
485 }
486 void OMPClauseProfiler::VisitOMPNumTasksClause(const OMPNumTasksClause *C) {
487   Profiler->VisitStmt(C->getNumTasks());
488 }
489 void OMPClauseProfiler::VisitOMPHintClause(const OMPHintClause *C) {
490   Profiler->VisitStmt(C->getHint());
491 }
492 }
493 
494 void
495 StmtProfiler::VisitOMPExecutableDirective(const OMPExecutableDirective *S) {
496   VisitStmt(S);
497   OMPClauseProfiler P(this);
498   ArrayRef<OMPClause *> Clauses = S->clauses();
499   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
500        I != E; ++I)
501     if (*I)
502       P.Visit(*I);
503 }
504 
505 void StmtProfiler::VisitOMPLoopDirective(const OMPLoopDirective *S) {
506   VisitOMPExecutableDirective(S);
507 }
508 
509 void StmtProfiler::VisitOMPParallelDirective(const OMPParallelDirective *S) {
510   VisitOMPExecutableDirective(S);
511 }
512 
513 void StmtProfiler::VisitOMPSimdDirective(const OMPSimdDirective *S) {
514   VisitOMPLoopDirective(S);
515 }
516 
517 void StmtProfiler::VisitOMPForDirective(const OMPForDirective *S) {
518   VisitOMPLoopDirective(S);
519 }
520 
521 void StmtProfiler::VisitOMPForSimdDirective(const OMPForSimdDirective *S) {
522   VisitOMPLoopDirective(S);
523 }
524 
525 void StmtProfiler::VisitOMPSectionsDirective(const OMPSectionsDirective *S) {
526   VisitOMPExecutableDirective(S);
527 }
528 
529 void StmtProfiler::VisitOMPSectionDirective(const OMPSectionDirective *S) {
530   VisitOMPExecutableDirective(S);
531 }
532 
533 void StmtProfiler::VisitOMPSingleDirective(const OMPSingleDirective *S) {
534   VisitOMPExecutableDirective(S);
535 }
536 
537 void StmtProfiler::VisitOMPMasterDirective(const OMPMasterDirective *S) {
538   VisitOMPExecutableDirective(S);
539 }
540 
541 void StmtProfiler::VisitOMPCriticalDirective(const OMPCriticalDirective *S) {
542   VisitOMPExecutableDirective(S);
543   VisitName(S->getDirectiveName().getName());
544 }
545 
546 void
547 StmtProfiler::VisitOMPParallelForDirective(const OMPParallelForDirective *S) {
548   VisitOMPLoopDirective(S);
549 }
550 
551 void StmtProfiler::VisitOMPParallelForSimdDirective(
552     const OMPParallelForSimdDirective *S) {
553   VisitOMPLoopDirective(S);
554 }
555 
556 void StmtProfiler::VisitOMPParallelSectionsDirective(
557     const OMPParallelSectionsDirective *S) {
558   VisitOMPExecutableDirective(S);
559 }
560 
561 void StmtProfiler::VisitOMPTaskDirective(const OMPTaskDirective *S) {
562   VisitOMPExecutableDirective(S);
563 }
564 
565 void StmtProfiler::VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *S) {
566   VisitOMPExecutableDirective(S);
567 }
568 
569 void StmtProfiler::VisitOMPBarrierDirective(const OMPBarrierDirective *S) {
570   VisitOMPExecutableDirective(S);
571 }
572 
573 void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
574   VisitOMPExecutableDirective(S);
575 }
576 
577 void StmtProfiler::VisitOMPTaskgroupDirective(const OMPTaskgroupDirective *S) {
578   VisitOMPExecutableDirective(S);
579 }
580 
581 void StmtProfiler::VisitOMPFlushDirective(const OMPFlushDirective *S) {
582   VisitOMPExecutableDirective(S);
583 }
584 
585 void StmtProfiler::VisitOMPOrderedDirective(const OMPOrderedDirective *S) {
586   VisitOMPExecutableDirective(S);
587 }
588 
589 void StmtProfiler::VisitOMPAtomicDirective(const OMPAtomicDirective *S) {
590   VisitOMPExecutableDirective(S);
591 }
592 
593 void StmtProfiler::VisitOMPTargetDirective(const OMPTargetDirective *S) {
594   VisitOMPExecutableDirective(S);
595 }
596 
597 void StmtProfiler::VisitOMPTargetDataDirective(const OMPTargetDataDirective *S) {
598   VisitOMPExecutableDirective(S);
599 }
600 
601 void StmtProfiler::VisitOMPTargetEnterDataDirective(
602     const OMPTargetEnterDataDirective *S) {
603   VisitOMPExecutableDirective(S);
604 }
605 
606 void StmtProfiler::VisitOMPTargetExitDataDirective(
607     const OMPTargetExitDataDirective *S) {
608   VisitOMPExecutableDirective(S);
609 }
610 
611 void StmtProfiler::VisitOMPTargetParallelDirective(
612     const OMPTargetParallelDirective *S) {
613   VisitOMPExecutableDirective(S);
614 }
615 
616 void StmtProfiler::VisitOMPTargetParallelForDirective(
617     const OMPTargetParallelForDirective *S) {
618   VisitOMPExecutableDirective(S);
619 }
620 
621 void StmtProfiler::VisitOMPTeamsDirective(const OMPTeamsDirective *S) {
622   VisitOMPExecutableDirective(S);
623 }
624 
625 void StmtProfiler::VisitOMPCancellationPointDirective(
626     const OMPCancellationPointDirective *S) {
627   VisitOMPExecutableDirective(S);
628 }
629 
630 void StmtProfiler::VisitOMPCancelDirective(const OMPCancelDirective *S) {
631   VisitOMPExecutableDirective(S);
632 }
633 
634 void StmtProfiler::VisitOMPTaskLoopDirective(const OMPTaskLoopDirective *S) {
635   VisitOMPLoopDirective(S);
636 }
637 
638 void StmtProfiler::VisitOMPTaskLoopSimdDirective(
639     const OMPTaskLoopSimdDirective *S) {
640   VisitOMPLoopDirective(S);
641 }
642 
643 void StmtProfiler::VisitOMPDistributeDirective(
644     const OMPDistributeDirective *S) {
645   VisitOMPLoopDirective(S);
646 }
647 
648 void OMPClauseProfiler::VisitOMPDistScheduleClause(
649     const OMPDistScheduleClause *C) {
650   VistOMPClauseWithPreInit(C);
651   if (auto *S = C->getChunkSize())
652     Profiler->VisitStmt(S);
653 }
654 
655 void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
656 
657 void StmtProfiler::VisitExpr(const Expr *S) {
658   VisitStmt(S);
659 }
660 
661 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
662   VisitExpr(S);
663   if (!Canonical)
664     VisitNestedNameSpecifier(S->getQualifier());
665   VisitDecl(S->getDecl());
666   if (!Canonical)
667     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
668 }
669 
670 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
671   VisitExpr(S);
672   ID.AddInteger(S->getIdentType());
673 }
674 
675 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
676   VisitExpr(S);
677   S->getValue().Profile(ID);
678   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
679 }
680 
681 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
682   VisitExpr(S);
683   ID.AddInteger(S->getKind());
684   ID.AddInteger(S->getValue());
685 }
686 
687 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
688   VisitExpr(S);
689   S->getValue().Profile(ID);
690   ID.AddBoolean(S->isExact());
691   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
692 }
693 
694 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
695   VisitExpr(S);
696 }
697 
698 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
699   VisitExpr(S);
700   ID.AddString(S->getBytes());
701   ID.AddInteger(S->getKind());
702 }
703 
704 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
705   VisitExpr(S);
706 }
707 
708 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
709   VisitExpr(S);
710 }
711 
712 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
713   VisitExpr(S);
714   ID.AddInteger(S->getOpcode());
715 }
716 
717 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
718   VisitType(S->getTypeSourceInfo()->getType());
719   unsigned n = S->getNumComponents();
720   for (unsigned i = 0; i < n; ++i) {
721     const OffsetOfNode &ON = S->getComponent(i);
722     ID.AddInteger(ON.getKind());
723     switch (ON.getKind()) {
724     case OffsetOfNode::Array:
725       // Expressions handled below.
726       break;
727 
728     case OffsetOfNode::Field:
729       VisitDecl(ON.getField());
730       break;
731 
732     case OffsetOfNode::Identifier:
733       ID.AddPointer(ON.getFieldName());
734       break;
735 
736     case OffsetOfNode::Base:
737       // These nodes are implicit, and therefore don't need profiling.
738       break;
739     }
740   }
741 
742   VisitExpr(S);
743 }
744 
745 void
746 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
747   VisitExpr(S);
748   ID.AddInteger(S->getKind());
749   if (S->isArgumentType())
750     VisitType(S->getArgumentType());
751 }
752 
753 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
754   VisitExpr(S);
755 }
756 
757 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
758   VisitExpr(S);
759 }
760 
761 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
762   VisitExpr(S);
763 }
764 
765 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
766   VisitExpr(S);
767   VisitDecl(S->getMemberDecl());
768   if (!Canonical)
769     VisitNestedNameSpecifier(S->getQualifier());
770   ID.AddBoolean(S->isArrow());
771 }
772 
773 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
774   VisitExpr(S);
775   ID.AddBoolean(S->isFileScope());
776 }
777 
778 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
779   VisitExpr(S);
780 }
781 
782 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
783   VisitCastExpr(S);
784   ID.AddInteger(S->getValueKind());
785 }
786 
787 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
788   VisitCastExpr(S);
789   VisitType(S->getTypeAsWritten());
790 }
791 
792 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
793   VisitExplicitCastExpr(S);
794 }
795 
796 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
797   VisitExpr(S);
798   ID.AddInteger(S->getOpcode());
799 }
800 
801 void
802 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
803   VisitBinaryOperator(S);
804 }
805 
806 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
807   VisitExpr(S);
808 }
809 
810 void StmtProfiler::VisitBinaryConditionalOperator(
811     const BinaryConditionalOperator *S) {
812   VisitExpr(S);
813 }
814 
815 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
816   VisitExpr(S);
817   VisitDecl(S->getLabel());
818 }
819 
820 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
821   VisitExpr(S);
822 }
823 
824 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
825   VisitExpr(S);
826 }
827 
828 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
829   VisitExpr(S);
830 }
831 
832 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
833   VisitExpr(S);
834 }
835 
836 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
837   VisitExpr(S);
838 }
839 
840 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
841   VisitExpr(S);
842 }
843 
844 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
845   if (S->getSyntacticForm()) {
846     VisitInitListExpr(S->getSyntacticForm());
847     return;
848   }
849 
850   VisitExpr(S);
851 }
852 
853 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
854   VisitExpr(S);
855   ID.AddBoolean(S->usesGNUSyntax());
856   for (DesignatedInitExpr::const_designators_iterator D =
857          S->designators_begin(), DEnd = S->designators_end();
858        D != DEnd; ++D) {
859     if (D->isFieldDesignator()) {
860       ID.AddInteger(0);
861       VisitName(D->getFieldName());
862       continue;
863     }
864 
865     if (D->isArrayDesignator()) {
866       ID.AddInteger(1);
867     } else {
868       assert(D->isArrayRangeDesignator());
869       ID.AddInteger(2);
870     }
871     ID.AddInteger(D->getFirstExprIndex());
872   }
873 }
874 
875 // Seems that if VisitInitListExpr() only works on the syntactic form of an
876 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
877 void StmtProfiler::VisitDesignatedInitUpdateExpr(
878     const DesignatedInitUpdateExpr *S) {
879   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
880                    "initializer");
881 }
882 
883 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
884   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
885 }
886 
887 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
888   VisitExpr(S);
889 }
890 
891 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
892   VisitExpr(S);
893   VisitName(&S->getAccessor());
894 }
895 
896 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
897   VisitExpr(S);
898   VisitDecl(S->getBlockDecl());
899 }
900 
901 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
902   VisitExpr(S);
903   for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
904     QualType T = S->getAssocType(i);
905     if (T.isNull())
906       ID.AddPointer(nullptr);
907     else
908       VisitType(T);
909     VisitExpr(S->getAssocExpr(i));
910   }
911 }
912 
913 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
914   VisitExpr(S);
915   for (PseudoObjectExpr::const_semantics_iterator
916          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
917     // Normally, we would not profile the source expressions of OVEs.
918     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
919       Visit(OVE->getSourceExpr());
920 }
921 
922 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
923   VisitExpr(S);
924   ID.AddInteger(S->getOp());
925 }
926 
927 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
928                                           UnaryOperatorKind &UnaryOp,
929                                           BinaryOperatorKind &BinaryOp) {
930   switch (S->getOperator()) {
931   case OO_None:
932   case OO_New:
933   case OO_Delete:
934   case OO_Array_New:
935   case OO_Array_Delete:
936   case OO_Arrow:
937   case OO_Call:
938   case OO_Conditional:
939   case OO_Coawait:
940   case NUM_OVERLOADED_OPERATORS:
941     llvm_unreachable("Invalid operator call kind");
942 
943   case OO_Plus:
944     if (S->getNumArgs() == 1) {
945       UnaryOp = UO_Plus;
946       return Stmt::UnaryOperatorClass;
947     }
948 
949     BinaryOp = BO_Add;
950     return Stmt::BinaryOperatorClass;
951 
952   case OO_Minus:
953     if (S->getNumArgs() == 1) {
954       UnaryOp = UO_Minus;
955       return Stmt::UnaryOperatorClass;
956     }
957 
958     BinaryOp = BO_Sub;
959     return Stmt::BinaryOperatorClass;
960 
961   case OO_Star:
962     if (S->getNumArgs() == 1) {
963       UnaryOp = UO_Deref;
964       return Stmt::UnaryOperatorClass;
965     }
966 
967     BinaryOp = BO_Mul;
968     return Stmt::BinaryOperatorClass;
969 
970   case OO_Slash:
971     BinaryOp = BO_Div;
972     return Stmt::BinaryOperatorClass;
973 
974   case OO_Percent:
975     BinaryOp = BO_Rem;
976     return Stmt::BinaryOperatorClass;
977 
978   case OO_Caret:
979     BinaryOp = BO_Xor;
980     return Stmt::BinaryOperatorClass;
981 
982   case OO_Amp:
983     if (S->getNumArgs() == 1) {
984       UnaryOp = UO_AddrOf;
985       return Stmt::UnaryOperatorClass;
986     }
987 
988     BinaryOp = BO_And;
989     return Stmt::BinaryOperatorClass;
990 
991   case OO_Pipe:
992     BinaryOp = BO_Or;
993     return Stmt::BinaryOperatorClass;
994 
995   case OO_Tilde:
996     UnaryOp = UO_Not;
997     return Stmt::UnaryOperatorClass;
998 
999   case OO_Exclaim:
1000     UnaryOp = UO_LNot;
1001     return Stmt::UnaryOperatorClass;
1002 
1003   case OO_Equal:
1004     BinaryOp = BO_Assign;
1005     return Stmt::BinaryOperatorClass;
1006 
1007   case OO_Less:
1008     BinaryOp = BO_LT;
1009     return Stmt::BinaryOperatorClass;
1010 
1011   case OO_Greater:
1012     BinaryOp = BO_GT;
1013     return Stmt::BinaryOperatorClass;
1014 
1015   case OO_PlusEqual:
1016     BinaryOp = BO_AddAssign;
1017     return Stmt::CompoundAssignOperatorClass;
1018 
1019   case OO_MinusEqual:
1020     BinaryOp = BO_SubAssign;
1021     return Stmt::CompoundAssignOperatorClass;
1022 
1023   case OO_StarEqual:
1024     BinaryOp = BO_MulAssign;
1025     return Stmt::CompoundAssignOperatorClass;
1026 
1027   case OO_SlashEqual:
1028     BinaryOp = BO_DivAssign;
1029     return Stmt::CompoundAssignOperatorClass;
1030 
1031   case OO_PercentEqual:
1032     BinaryOp = BO_RemAssign;
1033     return Stmt::CompoundAssignOperatorClass;
1034 
1035   case OO_CaretEqual:
1036     BinaryOp = BO_XorAssign;
1037     return Stmt::CompoundAssignOperatorClass;
1038 
1039   case OO_AmpEqual:
1040     BinaryOp = BO_AndAssign;
1041     return Stmt::CompoundAssignOperatorClass;
1042 
1043   case OO_PipeEqual:
1044     BinaryOp = BO_OrAssign;
1045     return Stmt::CompoundAssignOperatorClass;
1046 
1047   case OO_LessLess:
1048     BinaryOp = BO_Shl;
1049     return Stmt::BinaryOperatorClass;
1050 
1051   case OO_GreaterGreater:
1052     BinaryOp = BO_Shr;
1053     return Stmt::BinaryOperatorClass;
1054 
1055   case OO_LessLessEqual:
1056     BinaryOp = BO_ShlAssign;
1057     return Stmt::CompoundAssignOperatorClass;
1058 
1059   case OO_GreaterGreaterEqual:
1060     BinaryOp = BO_ShrAssign;
1061     return Stmt::CompoundAssignOperatorClass;
1062 
1063   case OO_EqualEqual:
1064     BinaryOp = BO_EQ;
1065     return Stmt::BinaryOperatorClass;
1066 
1067   case OO_ExclaimEqual:
1068     BinaryOp = BO_NE;
1069     return Stmt::BinaryOperatorClass;
1070 
1071   case OO_LessEqual:
1072     BinaryOp = BO_LE;
1073     return Stmt::BinaryOperatorClass;
1074 
1075   case OO_GreaterEqual:
1076     BinaryOp = BO_GE;
1077     return Stmt::BinaryOperatorClass;
1078 
1079   case OO_AmpAmp:
1080     BinaryOp = BO_LAnd;
1081     return Stmt::BinaryOperatorClass;
1082 
1083   case OO_PipePipe:
1084     BinaryOp = BO_LOr;
1085     return Stmt::BinaryOperatorClass;
1086 
1087   case OO_PlusPlus:
1088     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1089                                   : UO_PostInc;
1090     return Stmt::UnaryOperatorClass;
1091 
1092   case OO_MinusMinus:
1093     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1094                                   : UO_PostDec;
1095     return Stmt::UnaryOperatorClass;
1096 
1097   case OO_Comma:
1098     BinaryOp = BO_Comma;
1099     return Stmt::BinaryOperatorClass;
1100 
1101   case OO_ArrowStar:
1102     BinaryOp = BO_PtrMemI;
1103     return Stmt::BinaryOperatorClass;
1104 
1105   case OO_Subscript:
1106     return Stmt::ArraySubscriptExprClass;
1107   }
1108 
1109   llvm_unreachable("Invalid overloaded operator expression");
1110 }
1111 
1112 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1113   if (S->isTypeDependent()) {
1114     // Type-dependent operator calls are profiled like their underlying
1115     // syntactic operator.
1116     UnaryOperatorKind UnaryOp = UO_Extension;
1117     BinaryOperatorKind BinaryOp = BO_Comma;
1118     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1119 
1120     ID.AddInteger(SC);
1121     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1122       Visit(S->getArg(I));
1123     if (SC == Stmt::UnaryOperatorClass)
1124       ID.AddInteger(UnaryOp);
1125     else if (SC == Stmt::BinaryOperatorClass ||
1126              SC == Stmt::CompoundAssignOperatorClass)
1127       ID.AddInteger(BinaryOp);
1128     else
1129       assert(SC == Stmt::ArraySubscriptExprClass);
1130 
1131     return;
1132   }
1133 
1134   VisitCallExpr(S);
1135   ID.AddInteger(S->getOperator());
1136 }
1137 
1138 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1139   VisitCallExpr(S);
1140 }
1141 
1142 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1143   VisitCallExpr(S);
1144 }
1145 
1146 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1147   VisitExpr(S);
1148 }
1149 
1150 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1151   VisitExplicitCastExpr(S);
1152 }
1153 
1154 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1155   VisitCXXNamedCastExpr(S);
1156 }
1157 
1158 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1159   VisitCXXNamedCastExpr(S);
1160 }
1161 
1162 void
1163 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1164   VisitCXXNamedCastExpr(S);
1165 }
1166 
1167 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1168   VisitCXXNamedCastExpr(S);
1169 }
1170 
1171 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1172   VisitCallExpr(S);
1173 }
1174 
1175 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1176   VisitExpr(S);
1177   ID.AddBoolean(S->getValue());
1178 }
1179 
1180 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1181   VisitExpr(S);
1182 }
1183 
1184 void StmtProfiler::VisitCXXStdInitializerListExpr(
1185     const CXXStdInitializerListExpr *S) {
1186   VisitExpr(S);
1187 }
1188 
1189 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1190   VisitExpr(S);
1191   if (S->isTypeOperand())
1192     VisitType(S->getTypeOperandSourceInfo()->getType());
1193 }
1194 
1195 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1196   VisitExpr(S);
1197   if (S->isTypeOperand())
1198     VisitType(S->getTypeOperandSourceInfo()->getType());
1199 }
1200 
1201 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1202   VisitExpr(S);
1203   VisitDecl(S->getPropertyDecl());
1204 }
1205 
1206 void StmtProfiler::VisitMSPropertySubscriptExpr(
1207     const MSPropertySubscriptExpr *S) {
1208   VisitExpr(S);
1209 }
1210 
1211 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1212   VisitExpr(S);
1213   ID.AddBoolean(S->isImplicit());
1214 }
1215 
1216 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1217   VisitExpr(S);
1218 }
1219 
1220 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1221   VisitExpr(S);
1222   VisitDecl(S->getParam());
1223 }
1224 
1225 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1226   VisitExpr(S);
1227   VisitDecl(S->getField());
1228 }
1229 
1230 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1231   VisitExpr(S);
1232   VisitDecl(
1233          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1234 }
1235 
1236 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1237   VisitExpr(S);
1238   VisitDecl(S->getConstructor());
1239   ID.AddBoolean(S->isElidable());
1240 }
1241 
1242 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1243   VisitExplicitCastExpr(S);
1244 }
1245 
1246 void
1247 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1248   VisitCXXConstructExpr(S);
1249 }
1250 
1251 void
1252 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1253   VisitExpr(S);
1254   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1255                                  CEnd = S->explicit_capture_end();
1256        C != CEnd; ++C) {
1257     ID.AddInteger(C->getCaptureKind());
1258     switch (C->getCaptureKind()) {
1259     case LCK_This:
1260       break;
1261     case LCK_ByRef:
1262     case LCK_ByCopy:
1263       VisitDecl(C->getCapturedVar());
1264       ID.AddBoolean(C->isPackExpansion());
1265       break;
1266     case LCK_VLAType:
1267       llvm_unreachable("VLA type in explicit captures.");
1268     }
1269   }
1270   // Note: If we actually needed to be able to match lambda
1271   // expressions, we would have to consider parameters and return type
1272   // here, among other things.
1273   VisitStmt(S->getBody());
1274 }
1275 
1276 void
1277 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1278   VisitExpr(S);
1279 }
1280 
1281 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1282   VisitExpr(S);
1283   ID.AddBoolean(S->isGlobalDelete());
1284   ID.AddBoolean(S->isArrayForm());
1285   VisitDecl(S->getOperatorDelete());
1286 }
1287 
1288 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1289   VisitExpr(S);
1290   VisitType(S->getAllocatedType());
1291   VisitDecl(S->getOperatorNew());
1292   VisitDecl(S->getOperatorDelete());
1293   ID.AddBoolean(S->isArray());
1294   ID.AddInteger(S->getNumPlacementArgs());
1295   ID.AddBoolean(S->isGlobalNew());
1296   ID.AddBoolean(S->isParenTypeId());
1297   ID.AddInteger(S->getInitializationStyle());
1298 }
1299 
1300 void
1301 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1302   VisitExpr(S);
1303   ID.AddBoolean(S->isArrow());
1304   VisitNestedNameSpecifier(S->getQualifier());
1305   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1306   if (S->getScopeTypeInfo())
1307     VisitType(S->getScopeTypeInfo()->getType());
1308   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1309   if (S->getDestroyedTypeInfo())
1310     VisitType(S->getDestroyedType());
1311   else
1312     ID.AddPointer(S->getDestroyedTypeIdentifier());
1313 }
1314 
1315 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1316   VisitExpr(S);
1317   VisitNestedNameSpecifier(S->getQualifier());
1318   VisitName(S->getName());
1319   ID.AddBoolean(S->hasExplicitTemplateArgs());
1320   if (S->hasExplicitTemplateArgs())
1321     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1322 }
1323 
1324 void
1325 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1326   VisitOverloadExpr(S);
1327 }
1328 
1329 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1330   VisitExpr(S);
1331   ID.AddInteger(S->getTrait());
1332   ID.AddInteger(S->getNumArgs());
1333   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1334     VisitType(S->getArg(I)->getType());
1335 }
1336 
1337 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1338   VisitExpr(S);
1339   ID.AddInteger(S->getTrait());
1340   VisitType(S->getQueriedType());
1341 }
1342 
1343 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1344   VisitExpr(S);
1345   ID.AddInteger(S->getTrait());
1346   VisitExpr(S->getQueriedExpression());
1347 }
1348 
1349 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1350     const DependentScopeDeclRefExpr *S) {
1351   VisitExpr(S);
1352   VisitName(S->getDeclName());
1353   VisitNestedNameSpecifier(S->getQualifier());
1354   ID.AddBoolean(S->hasExplicitTemplateArgs());
1355   if (S->hasExplicitTemplateArgs())
1356     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1357 }
1358 
1359 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1360   VisitExpr(S);
1361 }
1362 
1363 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1364     const CXXUnresolvedConstructExpr *S) {
1365   VisitExpr(S);
1366   VisitType(S->getTypeAsWritten());
1367 }
1368 
1369 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1370     const CXXDependentScopeMemberExpr *S) {
1371   ID.AddBoolean(S->isImplicitAccess());
1372   if (!S->isImplicitAccess()) {
1373     VisitExpr(S);
1374     ID.AddBoolean(S->isArrow());
1375   }
1376   VisitNestedNameSpecifier(S->getQualifier());
1377   VisitName(S->getMember());
1378   ID.AddBoolean(S->hasExplicitTemplateArgs());
1379   if (S->hasExplicitTemplateArgs())
1380     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1381 }
1382 
1383 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1384   ID.AddBoolean(S->isImplicitAccess());
1385   if (!S->isImplicitAccess()) {
1386     VisitExpr(S);
1387     ID.AddBoolean(S->isArrow());
1388   }
1389   VisitNestedNameSpecifier(S->getQualifier());
1390   VisitName(S->getMemberName());
1391   ID.AddBoolean(S->hasExplicitTemplateArgs());
1392   if (S->hasExplicitTemplateArgs())
1393     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1394 }
1395 
1396 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1397   VisitExpr(S);
1398 }
1399 
1400 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1401   VisitExpr(S);
1402 }
1403 
1404 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1405   VisitExpr(S);
1406   VisitDecl(S->getPack());
1407   if (S->isPartiallySubstituted()) {
1408     auto Args = S->getPartialArguments();
1409     ID.AddInteger(Args.size());
1410     for (const auto &TA : Args)
1411       VisitTemplateArgument(TA);
1412   } else {
1413     ID.AddInteger(0);
1414   }
1415 }
1416 
1417 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1418     const SubstNonTypeTemplateParmPackExpr *S) {
1419   VisitExpr(S);
1420   VisitDecl(S->getParameterPack());
1421   VisitTemplateArgument(S->getArgumentPack());
1422 }
1423 
1424 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1425     const SubstNonTypeTemplateParmExpr *E) {
1426   // Profile exactly as the replacement expression.
1427   Visit(E->getReplacement());
1428 }
1429 
1430 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1431   VisitExpr(S);
1432   VisitDecl(S->getParameterPack());
1433   ID.AddInteger(S->getNumExpansions());
1434   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1435     VisitDecl(*I);
1436 }
1437 
1438 void StmtProfiler::VisitMaterializeTemporaryExpr(
1439                                            const MaterializeTemporaryExpr *S) {
1440   VisitExpr(S);
1441 }
1442 
1443 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
1444   VisitExpr(S);
1445   ID.AddInteger(S->getOperator());
1446 }
1447 
1448 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
1449   VisitStmt(S);
1450 }
1451 
1452 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
1453   VisitStmt(S);
1454 }
1455 
1456 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
1457   VisitExpr(S);
1458 }
1459 
1460 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
1461   VisitExpr(S);
1462 }
1463 
1464 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
1465   VisitExpr(E);
1466 }
1467 
1468 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
1469   VisitExpr(E);
1470 }
1471 
1472 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
1473   VisitExpr(S);
1474 }
1475 
1476 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
1477   VisitExpr(E);
1478 }
1479 
1480 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
1481   VisitExpr(E);
1482 }
1483 
1484 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
1485   VisitExpr(E);
1486 }
1487 
1488 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
1489   VisitExpr(S);
1490   VisitType(S->getEncodedType());
1491 }
1492 
1493 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
1494   VisitExpr(S);
1495   VisitName(S->getSelector());
1496 }
1497 
1498 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
1499   VisitExpr(S);
1500   VisitDecl(S->getProtocol());
1501 }
1502 
1503 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
1504   VisitExpr(S);
1505   VisitDecl(S->getDecl());
1506   ID.AddBoolean(S->isArrow());
1507   ID.AddBoolean(S->isFreeIvar());
1508 }
1509 
1510 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1511   VisitExpr(S);
1512   if (S->isImplicitProperty()) {
1513     VisitDecl(S->getImplicitPropertyGetter());
1514     VisitDecl(S->getImplicitPropertySetter());
1515   } else {
1516     VisitDecl(S->getExplicitProperty());
1517   }
1518   if (S->isSuperReceiver()) {
1519     ID.AddBoolean(S->isSuperReceiver());
1520     VisitType(S->getSuperReceiverType());
1521   }
1522 }
1523 
1524 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
1525   VisitExpr(S);
1526   VisitDecl(S->getAtIndexMethodDecl());
1527   VisitDecl(S->setAtIndexMethodDecl());
1528 }
1529 
1530 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
1531   VisitExpr(S);
1532   VisitName(S->getSelector());
1533   VisitDecl(S->getMethodDecl());
1534 }
1535 
1536 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
1537   VisitExpr(S);
1538   ID.AddBoolean(S->isArrow());
1539 }
1540 
1541 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
1542   VisitExpr(S);
1543   ID.AddBoolean(S->getValue());
1544 }
1545 
1546 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
1547     const ObjCIndirectCopyRestoreExpr *S) {
1548   VisitExpr(S);
1549   ID.AddBoolean(S->shouldCopy());
1550 }
1551 
1552 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
1553   VisitExplicitCastExpr(S);
1554   ID.AddBoolean(S->getBridgeKind());
1555 }
1556 
1557 void StmtProfiler::VisitDecl(const Decl *D) {
1558   ID.AddInteger(D? D->getKind() : 0);
1559 
1560   if (Canonical && D) {
1561     if (const NonTypeTemplateParmDecl *NTTP =
1562           dyn_cast<NonTypeTemplateParmDecl>(D)) {
1563       ID.AddInteger(NTTP->getDepth());
1564       ID.AddInteger(NTTP->getIndex());
1565       ID.AddBoolean(NTTP->isParameterPack());
1566       VisitType(NTTP->getType());
1567       return;
1568     }
1569 
1570     if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
1571       // The Itanium C++ ABI uses the type, scope depth, and scope
1572       // index of a parameter when mangling expressions that involve
1573       // function parameters, so we will use the parameter's type for
1574       // establishing function parameter identity. That way, our
1575       // definition of "equivalent" (per C++ [temp.over.link]) is at
1576       // least as strong as the definition of "equivalent" used for
1577       // name mangling.
1578       VisitType(Parm->getType());
1579       ID.AddInteger(Parm->getFunctionScopeDepth());
1580       ID.AddInteger(Parm->getFunctionScopeIndex());
1581       return;
1582     }
1583 
1584     if (const TemplateTypeParmDecl *TTP =
1585           dyn_cast<TemplateTypeParmDecl>(D)) {
1586       ID.AddInteger(TTP->getDepth());
1587       ID.AddInteger(TTP->getIndex());
1588       ID.AddBoolean(TTP->isParameterPack());
1589       return;
1590     }
1591 
1592     if (const TemplateTemplateParmDecl *TTP =
1593           dyn_cast<TemplateTemplateParmDecl>(D)) {
1594       ID.AddInteger(TTP->getDepth());
1595       ID.AddInteger(TTP->getIndex());
1596       ID.AddBoolean(TTP->isParameterPack());
1597       return;
1598     }
1599   }
1600 
1601   ID.AddPointer(D? D->getCanonicalDecl() : nullptr);
1602 }
1603 
1604 void StmtProfiler::VisitType(QualType T) {
1605   if (Canonical)
1606     T = Context.getCanonicalType(T);
1607 
1608   ID.AddPointer(T.getAsOpaquePtr());
1609 }
1610 
1611 void StmtProfiler::VisitName(DeclarationName Name) {
1612   ID.AddPointer(Name.getAsOpaquePtr());
1613 }
1614 
1615 void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
1616   if (Canonical)
1617     NNS = Context.getCanonicalNestedNameSpecifier(NNS);
1618   ID.AddPointer(NNS);
1619 }
1620 
1621 void StmtProfiler::VisitTemplateName(TemplateName Name) {
1622   if (Canonical)
1623     Name = Context.getCanonicalTemplateName(Name);
1624 
1625   Name.Profile(ID);
1626 }
1627 
1628 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
1629                                           unsigned NumArgs) {
1630   ID.AddInteger(NumArgs);
1631   for (unsigned I = 0; I != NumArgs; ++I)
1632     VisitTemplateArgument(Args[I].getArgument());
1633 }
1634 
1635 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
1636   // Mostly repetitive with TemplateArgument::Profile!
1637   ID.AddInteger(Arg.getKind());
1638   switch (Arg.getKind()) {
1639   case TemplateArgument::Null:
1640     break;
1641 
1642   case TemplateArgument::Type:
1643     VisitType(Arg.getAsType());
1644     break;
1645 
1646   case TemplateArgument::Template:
1647   case TemplateArgument::TemplateExpansion:
1648     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
1649     break;
1650 
1651   case TemplateArgument::Declaration:
1652     VisitDecl(Arg.getAsDecl());
1653     break;
1654 
1655   case TemplateArgument::NullPtr:
1656     VisitType(Arg.getNullPtrType());
1657     break;
1658 
1659   case TemplateArgument::Integral:
1660     Arg.getAsIntegral().Profile(ID);
1661     VisitType(Arg.getIntegralType());
1662     break;
1663 
1664   case TemplateArgument::Expression:
1665     Visit(Arg.getAsExpr());
1666     break;
1667 
1668   case TemplateArgument::Pack:
1669     for (const auto &P : Arg.pack_elements())
1670       VisitTemplateArgument(P);
1671     break;
1672   }
1673 }
1674 
1675 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
1676                    bool Canonical) const {
1677   StmtProfiler Profiler(ID, Context, Canonical);
1678   Profiler.Visit(this);
1679 }
1680